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http://dx.doi.org/10.5764/TCF.2008.20.6.001

The Deodorization and Antibacterial Activities of PLA Films Embedded with TiO2 Nanoparticles  

Koo, Gwang-Hoe (Dept. of Nano-Bio Textile engineering, Kumoh National Institute of Technology)
Jang, Jin-Ho (Dept. of Nano-Bio Textile engineering, Kumoh National Institute of Technology)
Publication Information
Textile Coloration and Finishing / v.20, no.6, 2008 , pp. 1-7 More about this Journal
Abstract
The effects of $TiO_2$ contents and UV irradiation treatment on the surface properties of PLA films embedded with $TiO_2$ nanoparticle were investigated. Whereas UV irradiation decreased reflectance of the treated PLA films proportionally with increasing UV energy, the reflectance of PLA/$TiO_2$ films increased with increasing UV energy. The UV irradiation treatment caused PLA/$TiO_2$ blend films more polar as indicated in the generation of new carbonyl group and decrease in zeta potentials, which was more pronounced with the introduction of $TiO_2$. Upon UV irradiation, $TiO_2$ particles appeared on the film surface as observed in SEM images. The PLA/$TiO_2$ blend films showed photocatalytic properties such as photobleaching of methylene blue, deodorization of ammonia and antimicrobial activity in comparison with pure PLA films.
Keywords
Poly(lactic acid); UV irradiation; photocatalyst; deordorization; antimicrobial activity;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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